Sedimentary And Igneous (Mixed)

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Crystal variety)

Silicon Dioxide (SiO2)

Quartz Druzy (on Calcedony/Quartz base)

Silicon Dioxide (SiO2)

Pyrite

Iron Disulfide (FeS2)

Gneiss

Gneiss (High-grade metamorphic rock)

Gneiss

Gneiss

Banded Gneiss (with Quartz Vein)

Gneiss (Metamorphic rock of varying mineralogy)

Chalcedony (Banded/Mottled Variety)

Chalcedony (a cryptocrystalline variety of Quartz, SiO2)

Smoky Quartz

Smoky Quartz (SiO ₂)

Red Jasper

Red Jasper (variety of Chalcedony, SiO₂)

Jasper

Silicon dioxide (SiO2)

Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Jade (Yellow Chalcedony/Quartz)

Silicon Dioxide (SiO2)

Banded Agate (Agatized Geode Slice)

Silicon Dioxide (SiO₂)

Unidentifiable Specimen

Undetermined

Dendritic Agate

Silicon Dioxide (SiO2) with manganese/iron inclusions

Quartz (Milky or Smoky Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Bull Quartz)

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Red Hematite

Iron(III) Oxide (Fe2O3)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Clear Quartz Cluster

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Gneiss

Gneiss (High-grade Metamorphic Rock)

Quartz / Rock Crystal

Silicon Dioxide (SiO2)

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Clear Quartz (Druzy)

Crystalline Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Fluorite

Calcium Fluoride (CaF2)

Clear Quartz

Silicon Dioxide (SiO2)

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)